Patents by Inventor Yong-Seong Cho

Yong-Seong Cho has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20200322121
    Abstract: A method and an apparatus for estimating synchronization of a broadcast signal in a time domain using a synchronization estimation signal through steps of: performing a correlation operation using a correlation window on a plurality of synchronization estimation signals separated to a plurality of paths and outputting a plurality of correlated signals; delaying the plurality of correlated signals to output a plurality of delayed signals; and estimating the synchronization using the plurality of delayed signals are provided.
    Type: Application
    Filed: April 3, 2020
    Publication date: October 8, 2020
    Inventors: Myung-Sun BAEK, Sang-Jung RA, Byungjun BAE, Yong Seong CHO, Hyoung Kyu SONG, Won-Seok LEE
  • Publication number: 20200213072
    Abstract: Disclosed are a method and a device for transmitting and receiving a signal, the method including: identifying a downlink signal-only transmission section in which a first electronic device transmits a downlink signal to a second electronic device, and transmitting the signal in the downlink signal-only transmission section; detecting at least one symbol that has a power value relatively higher than a predetermined threshold value; estimating, on the basis of the detected at least one symbol, an interference channel in which a self-interference signal occurs; detecting the self-interference signal; and identifying an FDX transmission section in which an uplink signal is received from the second electronic device and the downlink signal is transmitted simultaneously, and processing transmission of the downlink signal and reception of the uplink signal in the FDX transmission section, wherein the reception of the uplink signal is processed by removing the self-interference signal occurring in the interference c
    Type: Application
    Filed: December 26, 2019
    Publication date: July 2, 2020
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Myung Sun BAEK, Jin Hyuk SONG, Joon Young JUNG, Heung Mook KIM, Yong Seong CHO
  • Patent number: 10645461
    Abstract: Disclosed herein are a method for providing an ad-hoc broadcast service based on channel sharing and an apparatus for the same. The method is configured such that a master broadcast transmitter for providing an ad-hoc broadcast service receives a request to share a channel from a new broadcast transmitter, allocates one of multiple subframes, into which the transmission frame of any one broadcast channel corresponding to the ad-hoc broadcast service is divided, to the new broadcast transmitter, and controls the new broadcast transmitter in real time by performing synchronization with the new broadcast transmitter based on reference time information included in a control Physical Layer Pipe (PLP).
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: May 5, 2020
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Dong-Joon Choi, Heung-Mook Kim, Sung-Ik Park, Joon-Young Jung, Yong-Seong Cho
  • Patent number: 10484116
    Abstract: Disclosed herein are an apparatus and method for converting a broadcast signal. The apparatus for converting a broadcast signal includes a demultiplexer unit for receiving a terrestrial broadcast signal and generating a terrestrial signaling signal, a signaling conversion unit for converting the terrestrial signaling signal into a cable signaling signal by parsing the terrestrial signaling signal, a cable multiplexer unit for generating a cable broadcast signal by multiplexing the cable signaling signal, and a cable modulation unit for modulating the cable broadcast signal and transmitting the cable broadcast signal over a cable network.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: November 19, 2019
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Byung-Jun Bae, Hye-Ju Oh, Yong-Seong Cho, Heung-Mook Kim, Joon-Young Jung, Nam-Ho Hur
  • Publication number: 20190182515
    Abstract: Disclosed herein are an apparatus and method for providing a broadcasting service. The method for providing a broadcasting service is performed using a broadcasting service provision apparatus and a terminal device, and includes performing, by the broadcasting service provision apparatus and the terminal device, initialization using information acquired from a downstream signal received from a Cable Modem Termination System (CMTS), converting, by the terminal device, an upstream signal received from a Cable Modem (CM) into a digital signal, encapsulating the digital signal into an IP packet, and transmitting the IP packet to the broadcasting service provision apparatus, and extracting, by the broadcasting service provision apparatus, the digital signal from the IP packet received from the terminal device, converting the digital signal into an analog signal, and transmitting an upstream signal corresponding to the analog signal to the CMTS.
    Type: Application
    Filed: November 14, 2018
    Publication date: June 13, 2019
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Tae-Kyoon Kim, Dong-Joon Choi, Eun-Hee Hyun, Yong-Seong Cho, Joon-Young Jung, Heung-Mook Kim
  • Publication number: 20190174200
    Abstract: Disclosed herein are a method for providing an ad-hoc broadcast service based on channel sharing and an apparatus for the same. The method is configured such that a master broadcast transmitter for providing an ad-hoc broadcast service receives a request to share a channel from a new broadcast transmitter, allocates one of multiple subframes, into which the transmission frame of any one broadcast channel corresponding to the ad-hoc broadcast service is divided, to the new broadcast transmitter, and controls the new broadcast transmitter in real time by performing synchronization with the new broadcast transmitter based on reference time information included in a control Physical Layer Pipe (PLP).
    Type: Application
    Filed: December 5, 2018
    Publication date: June 6, 2019
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Dong-Joon CHOI, Heung-Mook KIM, Sung-Ik PARK, Joon-Young JUNG, Yong-Seong CHO
  • Publication number: 20180176637
    Abstract: Provided are an apparatus for retransmitting an advanced television systems committee (ATSC) 3.0 digital TV broadcast and methods of the same, the apparatus including a receiver configured to selectively receive at least one of an ATSC 3.0 based digital broadcast signal and an ATSC 3.0 based Internet Protocol (IP) packet input through a first network, a controller configured to generate a moving picture experts group-2 transport stream (MPEG-2 TS) packet by converting audio/video (A/V) packets and signaling information to be received at a second network based on an output signal of the receiver, and extract and provide broadcast program information for a system information (SI) system of a digital broadcast headend to generate an SI table related to a broadcast program converted to MPEG-2 TS, and a transmitter configured to transmit broadcast data to which the MPEG-2 TS packet is converted and the broadcast program information through the second network.
    Type: Application
    Filed: November 30, 2017
    Publication date: June 21, 2018
    Applicant: Electronics and Telecommunications Research Institute
    Inventors: Yong Seong CHO, Byungjun BAE, Hye Ju OH, Joon Young JUNG, Namho HUR
  • Publication number: 20180145777
    Abstract: Disclosed herein are an apparatus and method for converting a broadcast signal. The apparatus for converting a broadcast signal includes a demultiplexer unit for receiving a terrestrial broadcast signal and generating a terrestrial signaling signal, a signaling conversion unit for converting the terrestrial signaling signal into a cable signaling signal by parsing the terrestrial signaling signal, a cable multiplexer unit for generating a cable broadcast signal by multiplexing the cable signaling signal, and a cable modulation unit for modulating the cable broadcast signal and transmitting the cable broadcast signal over a cable network.
    Type: Application
    Filed: October 17, 2017
    Publication date: May 24, 2018
    Inventors: Byung-Jun BAE, Hye-Ju OH, Yong-Seong CHO, Heung-Mook KIM, Joon-Young JUNG, Nam-Ho HUR
  • Publication number: 20180063559
    Abstract: Disclosed herein is technology for controlling transmission of a switched digital video service through which an operator management and control system for efficiently managing and controlling a switched digital video transmission system, which may improve utilization of frequency resources, may be simply constructed and managed. To this end, a method for controlling transmission of a switched digital video service includes configuring a multicast session based on information about a request to transmit a video, which is transmitted from a user end; forming and controlling a service flow to be transmitted through the multicast session; allocating and managing a frequency channel resource through which the service flow is to be transmitted; and sharing information about the frequency channel resource and allocation thereof with a switched digital video control module and managing and controlling the switched digital video control module.
    Type: Application
    Filed: July 26, 2017
    Publication date: March 1, 2018
    Inventors: Tae-Kyoon KIM, Yong-Seong CHO, Joon-Young JUNG, Nam-Ho HUR
  • Publication number: 20170180049
    Abstract: Provided are an apparatus and method for broadcasting-communications convergence in a hybrid fiber coax (HFC) network. The apparatus includes an optical connector configured to receive broadcast data and communication data from a cable broadcasting station through an optical cable, a channel switch configured to receive the broadcast data from the optical connector and select a piece of broadcast data to be transmitted to a subscriber from among pieces of the broadcast data, and a convergence processor configured to receive the communication data from the optical io connector, receive the selected piece of broadcast data from the channel switch, generate broadcasting-communications convergence data by multiplexing the received communication data and the selected piece of broadcast data, and transmit the broadcasting-communications convergence data.
    Type: Application
    Filed: September 23, 2016
    Publication date: June 22, 2017
    Inventors: Tae Kyoon KIM, Joon Young JUNG, Dong Joon CHOI, Yong Seong CHO, Nam Ho HUR
  • Publication number: 20160358463
    Abstract: An integrated control device of ITS device comprising an element device controller including a plurality of element device control modules, the element device control modules configured to perform an operation set in advance based on a traffic image signal provided from at least one image acquisition device; and an integrated controller configured to monitor the element device control modules and configured to generate a traffic management strategy to control a traffic flow in some areas based on the operation of the element device control modules.
    Type: Application
    Filed: June 26, 2015
    Publication date: December 8, 2016
    Inventors: Yong Seong CHO, Seung Nyeo SON
  • Publication number: 20150256982
    Abstract: A method and apparatus for providing a mobile broadcasting service over a cable broadcasting network are provided. A mobile broadcast signal and a cable broadcast signal are transmitted over the cable broadcast network. The cable broadcast signal and the mobile broadcast signal are filtered to pass the mobile broadcast signal, and the passed mobile broadcast signal is sent to a mobile broadcast terminal.
    Type: Application
    Filed: February 26, 2015
    Publication date: September 10, 2015
    Inventors: Joon Young JUNG, Dong Joon CHOI, Namho HUR, YONG SEONG CHO
  • Patent number: 8826356
    Abstract: Disclosed are a cable modem and a data receiving method thereof. The cable modem includes a downlink channel retrieval processing unit to retrieve a downlink channel, receive an entire channel information message through the retrieved downlink channel, and receive a broadcasting supplementary data message when the entire information message is valid; a channel information processing unit to receive broadcasting supplementary data using the broadcasting supplementary data message; an uplink channel retrieval processing unit to retrieve an uplink channel using the entire channel information message; and a channel information managing unit to store and manage main data receiving channels capable of receiving the entire channel information message and the broadcasting supplementary data.
    Type: Grant
    Filed: July 29, 2008
    Date of Patent: September 2, 2014
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Yong Seong Cho, Seung Eun Hong, TaeKyoon Kim, O Hyung Kwon, Soo In Lee
  • Patent number: 8401040
    Abstract: Provided is apparatus and method for transforming cable channel. The apparatus includes a data mixing unit for receiving and mixing a band data and a first broadband data, to thereby generate a second broadband data of a broadband cable channel, and a channel adapting unit for dividing a band data from the second broadband data received through the broadband cable channel, bypassing the second broadband data to a first subscriber apparatus and transmitting the band data to a second subscriber apparatus.
    Type: Grant
    Filed: December 8, 2005
    Date of Patent: March 19, 2013
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Woong-Shik You, Joon-Young Jung, Yong-Seong Cho, Han-Seung Koo, O-Hyung Kwon, Soo-In Lee
  • Patent number: 8392722
    Abstract: Provided is a digital cable system and method for protecting a secure micro (SM) client, and more particularly, a digital cable system and method for protecting an SM program that can improve the security of an SM program through authentication of a host and integrity verification of the SM program. A method of protecting an SM program includes: receiving host authentication information associated with a host from a trusted authority; verifying validity of the secure micro program based on the host authentication information; and sending, to an authentication proxy, a HostStateInformation message that includes host state information associated with validity verification information of the SM program.
    Type: Grant
    Filed: August 14, 2008
    Date of Patent: March 5, 2013
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Yong Seong Cho, O Hyung Kwon, Soo In Lee
  • Publication number: 20100154018
    Abstract: Disclosed are a method and an apparatus of transmitting packet filtering information. A DSG channel information management server included in a digital cable broadcasting transmission headend combines a packet address and information related to the packet address and generates the combined information to be a single file, the packet address being used for filtering packets received by a cable modem contained in a cable broadcasting receptor, for each data type. The generated file is transmitted from a CMTS to the cable modem through a packet having a designated address mutually agreed upon between the headend and the cable modem, the cable modem obtains information for selectively filtering the received packets, from the received file, and constructs a filter. Data selectively filtered through each constructed filter is transmitted to a corresponding process module included in the cable broadcasting receptor that processes broadcasting program information, conditional access information, and the like.
    Type: Application
    Filed: August 27, 2009
    Publication date: June 17, 2010
    Inventors: Yong Seong CHO, Taekyoon KIM, O Hyung KWON, Soo In LEE
  • Publication number: 20090150974
    Abstract: Provided is a digital cable system and method for protecting a secure micro (SM) client, and more particularly, a digital cable system and method for protecting an SM program that can improve the security of an SM program through authentication of a host and integrity verification of the SM program. A method of protecting an SM program includes: receiving host authentication information associated with a host from a trusted authority; verifying validity of the secure micro program based on the host authentication information; and sending, to an authentication proxy, a HostStateInformation message that includes host state information associated with validity verification information of the SM program.
    Type: Application
    Filed: August 14, 2008
    Publication date: June 11, 2009
    Inventors: Yong Seong CHO, O Hyung KWON, Soo In LEE
  • Publication number: 20090141784
    Abstract: Disclosed are a cable modem and a data receiving method thereof. The cable modem includes a downlink channel retrieval processing unit to retrieve a downlink channel, receive an entire channel information message through the retrieved downlink channel, and receive a broadcasting supplementary data message when the entire information message is valid; a channel information processing unit to receive broadcasting supplementary data using the broadcasting supplementary data message; an uplink channel retrieval processing unit to retrieve an uplink channel using the entire channel information message; and a channel information managing unit to store and manage main data receiving channels capable of receiving the entire channel information message and the broadcasting supplementary data.
    Type: Application
    Filed: July 29, 2008
    Publication date: June 4, 2009
    Inventors: Yong Seong CHO, Seung Eun HONG, TaeKyoon KIM, O Hyung KWON, Soo In LEE
  • Publication number: 20090125966
    Abstract: A digital cable broadcasting receiver and a method of authenticating the digital cable broadcasting receiver, the digital cable broadcasting receiver includes: a security module unit to perform a device authentication process using two-way communication with a Head End (HE) system, and to transmit authentication verification information generated by the device authentication process to a receiver central processing unit (CPU); a demodulation unit to demodulate a broadcasting signal received from a tuner based on the authentication verification information, and to extract transport stream data; the receiver CPU to control power of the demodulation unit based on the authentication verification information; and a decoding unit to restore the transport stream data into image data.
    Type: Application
    Filed: June 16, 2008
    Publication date: May 14, 2009
    Inventors: Yong Seong CHO, O Hyung KWON, Soo In LEE
  • Patent number: 7480383
    Abstract: The apparatus and method for scrambling high-rate data is disclosed. The apparatus includes a first storing unit for storing a transport stream (TS) inputted from an external device; a common key (CK) generating unit for generating a CK by receiving a control word (CW) from an external conditional access system (CAS); a key scheduling unit for generating predetermined number of keys (KK)s by receiving the CK from the CK generating unit; a plurality of enciphering units for enciphering the TS transmitted from the first storing unit based on the predetermined number of KKs and the CK; a second storing unit for storing the TS enciphered by the enciphering units and outputting the enciphered TS; and a controlling unit for controlling the multiple enciphering units.
    Type: Grant
    Filed: September 23, 2004
    Date of Patent: January 20, 2009
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Yong-Seong Cho, Joon-Young Jung, O-Hyung Kwon, Soo-In Lee